SECTION 5 - BASIC HYDRAULIC INFOR
M
ATION AND SCHE
M
ATICS
5-36
3121160
2.
Use a soft mallet to tap a new wiper seal into the appli-
cable cylinder head gland groove. Install a new wear
rings into the applicable cylinder head gland groove.
3.
Place a new o-ring and backup ring in the applicable
outside diameter groove of the cylinder head.
4.
Install washer ring onto rod, carefully install the head
gland onto the rod, ensuring that the wiper and rod seal
are not damaged or dislodged. Push the head along the
rod to the rod end, as applicable.
5.
Carefully slide the piston spacer on the rod.
6.
Using suitable protection, clamp the cylinder rod in a
vise or similar holding fixture as close to piston as possi-
ble.
7.
Place a new o-ring and backup rings in the inner piston
diameter groove.
8.
Carefully thread the piston on the cylinder rod and hand
tight, ensuring that the o-ring and backup rings are not
damaged or dislodged.
9.
Thread piston onto rod until it abuts the spacer end and
install the tapered bushing.
NOTE:
When installing the tapered bushing, piston and mating
end of rod must be free of oil.
10.
Assemble the tapered bushing loosely into the piston
and insert capscrews through the drilled holes in the
bushing and into the tapped holes in the piston.
11.
Tighten the capscrews evenly and progressively in rota-
tion to 9 ft. lbs. (12.2 Nm).
12.
After the screws have been torqued, tap the tapered
bushing with a hammer (16 to 24 oz.) and brass shaft
(approximately 3/4 in. in diameter) as follows:
a.
Place the shaft against the cylinder rod and in con-
tact with the bushing in the spaces between the
capscrews.
b.
Tap each space once; this means the tapered bush-
ing is tapped 3 times as there are 3 spaces between
the capscrews.
Figure 5-69. Wiper Seal Installation
Figure 5-70. Installation of Head Seal Kit
TAPERED
BUSHING
ROD
CAPSCREW
PISTON
Figure 5-71. Tapered Bushing Installation
PISTON
BRASS SHAFT
ROD
CAPSCREW
TAPERED
BUSHING
Figure 5-72. Seating the Tapered Bearing
Summary of Contents for 740AJ
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Page 116: ...SECTION 3 CHASSIS TURNTABLE 3 64 3121160 Figure 3 44 Swing Hub Prior to SN 0300074383...
Page 203: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 151 Figure 3 77 EFI Component Location...
Page 206: ...SECTION 3 CHASSIS TURNTABLE 3 154 3121160 Figure 3 78 ECM EPM Identification ECM EPM...
Page 224: ...SECTION 3 CHASSIS TURNTABLE 3 172 3121160 Figure 3 83 Deutz EMR 2 Troubleshooting Flow Chart...
Page 228: ...SECTION 3 CHASSIS TURNTABLE 3 176 3121160 Figure 3 87 EMR 2 Engine Plug Pin Identification...
Page 229: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 177 Figure 3 88 EMR 2 Vehicle Plug Pin Identification...
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Page 303: ...SECTION 4 BOOM PLATFORM 3121160 4 31 Figure 4 20 Rotator Assembly HELAC...
Page 460: ...SECTION 5 BASIC HYDRAULIC INFORMATION AND SCHEMATICS 5 116 3121160 NOTES...
Page 467: ...SECTION 6 JLG CONTROL SYSTEM 3121160 6 7 Figure 6 2 ADE Block Diagram...
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